An anti-shake apparatus of a photographing apparatus, comprises a movable unit, a fixed unit, and an urging member. The movable unit has one of an imaging device and a hand-shake correcting lens, and can be moved in first and second directions. The first direction is perpendicular to an optical axis of a photographing optical system of the photographing apparatus. The second direction is perpendicular to the optical axis and the first direction. The fixed unit slidably supports the movable unit in both the first and second directions. The urging member extends, and then urges and fixes the movable unit when the urging member is in the off state, and shrinks, and then releases fixing the movable unit when the urging member is in the on state.

 
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> Method and apparatus for minimizing ambient illumination effects in a vision system

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